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Vulnerability Details : CVE-2007-4571

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before does not return the correct write size, which allows local users to obtain sensitive information (kernel memory contents) via a small count argument, as demonstrated by multiple reads of /proc/driver/snd-page-alloc.
Publish Date : 2007-09-26 Last Update Date : 2017-09-28
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID CWE id is not defined for this vulnerability

- Vendor Statements

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1 or 3.
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2007-09-13 2007-09-25
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-4571 unix
DSA-1479 linux-2.6 -- several vulnerabilities oval:org.mitre.oval:def:7654 unix
DSA-1479-1 linux-2.6 oval:org.mitre.oval:def:18770 unix
DSA-1505 alsa-driver -- kernel memory leak oval:org.mitre.oval:def:7957 unix
DSA-1505-1 alsa-driver alsa-modules-i386 - kernel memory leak oval:org.mitre.oval:def:18435 unix
ELSA-2007:0993: kernel security update (Important) oval:org.mitre.oval:def:21806 unix
RHSA-2007:0939: kernel security update (Important) oval:com.redhat.rhsa:def:20070939 unix
RHSA-2007:0993: kernel security update (Important) oval:com.redhat.rhsa:def:20070993 unix
The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux ker... oval:org.mitre.oval:def:9053 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-4571

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2007-4571
XF linux-sndpagealloc-information-disclosure(36780)
VUPEN ADV-2007-3272
SECTRACK 1018734
BID 25807 Linux Kernel ALSA snd-page-alloc Local Proc File Information Disclosure Vulnerability Release Date:2008-06-20
REDHAT RHSA-2007:0993
SUSE SUSE-SA:2007:053;a=commit;h=ccec6e2c4a74adf76ed4e2478091a311b1806212 CONFIRM
IDEFENSE 20070925 Linux Kernel ALSA snd_mem_proc_read Information Disclosure Vulnerability CONFIRM

- Metasploit Modules Related To CVE-2007-4571

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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